Year	2017 PPP (% of population)
2003	1.5
2004	1.1
2005	1.1
2006	0.6
2007	0.9
2008	0.9
2009	0.5
2010	0.5
2011	0.9
2012	1.5
2013	1.8
2014	1.5
2015	1.2
2016	0.7
2017	0.7
2018	0.7
2019	0.2
2020	1
2021	0.4